Heater



June 24, 1930. J. w. cUTHBERTsoN HEATER Filed- July 22, 1929 scribed and Claimedand illustrated in theac- Patented .lune 24, 193@ Unirse sra l rissa resA "PATENT orrice Y JAMEsgW. CUTHBEmsoN, or Los ANGELES, CALIFORNIA, 'Assistme @ARTHUR L.

nmoirsoimor 'runt-ocx, CALIFORNIA l a HEATER s Application'iiled July 22,

My invention relates generally to heating appliances and Vmore particularly'to a household heater that utilizes gas as fuel, and the principal objects of my invention are, to generally improve upon and simplify the construction of the existing forms of household gasheaters and to provide a heater that will burn gas', either natural or artificial as fuel, without noxious fumes.

Further objects of my invention are, to provide a household gas heater that is. rel-atively simple in constructiominexpensive of manufacture and in which the air that isheated and circulated from the heater is kept entirely separate from the air that is admitted to the burner chamber to support combustion, with the result that only pure heated air vis delivered from the heater and the products of combuslion and fumes from the burner pass off through a` suitably arranged vent.

A further object of my invention is, to provide means hereby practically pure air is admitted to the vent so as to dilute and destroy noxious fumes.

W'ith the foregoino" and other objects 1n View, my invention consists' in certainnovel features of construction and arrangement of parts that will hereinafter be more fully decompanying drawings, in which:

Fig. 1 is av vertical section taken through the center of a gas heater constructed in ae- VCordance with my invention.

Figm is a. horizontal seotionftahe'npon the Fig. 3 isa vertical section talrenlthrough the upperportion .of my improved heater vand showing; the form of heat that is utilizedA on the heater when the saine is locked in a basementor below the building iioor.

'ino drawings which illustrate a practical'einbediment of my invention', 10designatesthe cylindrical outer shell ofthe heater, Wlneh shell is preferably formed of suitable sheet metal, closed at its lovveren'dby a plate 11 and positioned on top of saidpshell isl cover y shaped central por plate 12 having a dome` K y tion 13 4that is provided with 'openings 1li.E

The body ofthe fheaterthus eonstructed is i929. serial-N0. 380,132.,-

Vline byvlegs 15. Concentrically arrange-d within the shell 10 is a lsmallercylindrical shell 16, the lower vend of-Whieh terminatesa short vdistance above the lbottomplate 15 and theplower end of said shell is closed by al metal plate 17; v y H j I y The space betveenthe plates 11 and 17 constitutes a chamber 18 for a gas burner ,19,k which latter iseonnected t0 a gas supply'pipe, 2O and formed through the lower portion of l the outer shell 10A is a series of openings 21 that permit air to enter the combustion chamber and supply the flames that issue from the burner with oxygen to support combustion.

Seated in the plates 11 and 17 and surrounding the burner 19 are tl e ends of open ended tubes 22` which are for the purpose of admitting air to the chamber within the heating1 drum 1G. l l Suitably supported Within the lower por vtion'of the chamber in the heating'druln is a horizontally disposed baille plate 23 which V tends to restrict the free flowof air upwardly through the heating drum and to cause the l7&5 fresh air entering the lower end of said drum to pass outwardly towardV the Wall of said drum. Y

An air and gas joint is formed between the upperedge ofthe shell Vor heating drum 16 Vand the top 12and arranged on the .external surface of said shellor .heatingdrum .isl a shell 2li, that bent VVto `forni vertically disposed oorrugations and applied totheiouter face of this corrugated shell is a layer 25 ofjthinslieet asbestos.` i Y i This YCorrugatedshell 24 provides onl 'the externalsurface of shell 16a series ofl rolal "titvely j'small vertically disposed ducts 2G A c l that are open at then-lower lend and which Referring by numerals to the Vaccompany- `fumes topass upwardly over the surfacev 'of the drum 16 and by Vmeans of perforations '27 that .are formed through the upper portion of thelshellQl, oneperforation for each 95 Vcorrugation7 these fumes 'and products of` combustion discharge, intofthe. upper portion of the circular' chamber between the heat? igdruin andouter shell. o' y f Leading from the upper portion of the 100 shell 10 is an outlet pipe 2S which communi- "ates with the upper end of a vertically disposed tubular housing 29, both ends of which are closed. Arranged within this tubular housing is a vertically disposed partition 30, the lower end oit-which terminates ashort distance above the bottom ot tubular housing 29, thereby providing an opening 31, and leading outwardly trom the upper portion ot' housing 29, directly opposite the outlet tube 28, is an outlet tube 32.

Located within the tubular housing 29, between the partition and the outer portion oi the wall of said housing, is an open ended air circulationtube 33, the upper end Ot which terminates immediately adjacent to the outlet tube 82 and the lower end of which tube 33 extends through the bottom ot housing 29 and terminates a short distance below said bottom.

Arranged within the upper portion ot the chamber within the heating` drunil is a ring shaped battle vplate 34, the outer edge of which sits against the wall ot the shell or drum 16 and suitably supported above the opening in the center .of said batlie ring is a baliie plate 36.

rlheilames trom burner 19 heat the bottom 17 of the heating drum as well as the wall 16 ol said drinn and air trom the bottom ot the room in which the heater is located, enters the heating drum through tubes 22 and as this air passes upwardly through the drum it is heated and in such condition discharges through the perforated top 1.3.

In the event that the heater is located in the baseinentor below the l'loor the heater provided with a closed top 13L from whichl leads aplurality ot heated air ducts 13" (sce Fig. 3).

The low of air upwardly throuo'h the heating drum is to a certain extent restricted and battled by the pla-tes 23', 34: and 36. Air to support combustion at the burner enters shell 1() through openings 21 and the burnt gases and products of combustion pass from be- -hcat within the heating drinn and prevent the radiation ot heat therefroinand the greater portion ot the `fumes resulting trom the combustion oi gas'at the burner passes upwardly .in the small ducts between the corrugated wall .or shell andl the wall 16 of the shell and these i'umes discharge through the opens ings 2T at the upper end of the corrugated wall and pass 'from thence outwardly througl'i outlet tube 28.

ln order to dilute and eliminate in so tar as is possible any noxious 'lumes that may be cai ied to the vent with the products oit combustion, comparatively pure air is permitted to enter the lower end of tube 33 and flow upwardly therethrough and discharge into the upper end of the housing 29 adjacent to the outlet opening-therefrom.

I have demonstrated in repeated tests anc experiments that practically pure air admitted to the products ot' combustion as-they7 discharge from a gas heater is highly etlective in destroying noxious fumes.

in especially desirable 'feature in my improved gasheater is the construction and arrangement whereby the air that is heated and delivered into theroomfor building` in which the heater is located, is kept entirely separate from the air that is delivered to the burner to support combustion 'and from the products ot combustion from said burner.

Thus it will be seen that I have provided a gas heater that is relatively simple in construction, inexpensive of manufacture and which may be economically employed for household heating purposes.

It will be understood that minor changes in the size, form and construction of the various parts ot my improved gas heater may be made and substituted for those herein shown and described without departing from the spirit oi my invention, the scope of which is set forth in the appended claims.

l claim as my invention:

1. In a gas heater, a housing, a heating drum arranged within said housing, a burner arranged within the housing beneath the heating drum, air inlet pipes leading through the bottom ot the housing and through the bottom of said' drum', a corrugated wall surrounding the heating drum, a layer of heat insulating material on said corrugated wall, there being openingsformed through the upper portion ot' the corrugated wall and a cover for said shell and heating drum, which cover is perforated above said heating drum,

2. In a gas heater, a housing, a heating drum arranged within said housing, a burner arranged within the housing beneath the heating drum, air inlet pipes leading through the bottom of the .housing` and through the bottoni of said drum, a corrugated wall surrounding the heating drum,'a layer of heat insulating material on said corrugated wall, there being openings formed throughv the upper portion of the corrugated wall, a cover for said shell and heating drum, which cover is perforated above said heating. drum and battle platesloc'atedjwithin said drum adjacent to the top and bottom thereof.

3. In a gas heater, a housing, a heating drinn arranged within said housing, a' burner arranged within the `housing beneath the .beatingdrum, air inlet pipes lead ing through the bottom of the housing and through the bottom of said drum, a corrugated wall surrounding the heating drum, a layer of heat insulating material on said corrugated wall, there being openings formed throughthe upper portion of the corrugated wall, a cover Vfor said shell and heating drum, which cover is perforated above said heating drum, an outlet leading from said shell near its upper end and means for admitting air to said outlet.

4. In a gas heater, a heating drum, a burner arranged beneath said drum, means for admitting air into the lower portion of the` chamber within said drum, a corrugated wall surrounding` the wall` of said drum, a layer of heat insulating material on said eorrugat-Vl ed wall and there being outlet openings `formedthrough the upper portion of said corrugated wall and the layer of heat insulating material thereon.

5. In a gas heater, a heating drum, a burner arranged beneath said drum, means for admitting air into the lower portion of the chamber within said drum, a corrugated wall surrounding the wall of said drum, a layer ot heat insulating material on said corrugated wall, there being outlet openings formed through the upper portion of said corrugated wall and the layer of heat insulatin, r` material tlrereon and a perforated cover for said heat# ing drum. n

6. In a gas heater, a heating drum, a burner arranged beneath said drum, means for ad mitting air into the `lower portion of the chamber within said drum, a corrugated wall surrounding the wall of said drum, alayer ot' heat insulating material on said corrugated wall, there being outlet openings formed through the upper portion of said corrugated wall and the layer of heat insulating material thereon, a perforated cover for said heating drum and batl'ie plates located Within said drum adjacent to its upper and lower ends.

In testimony whereof I aHiX my signature. 

